SUBSTANCE: reversible thermosensitive medium for printing, comprising a base, a reversible thermosensitive layer for printing, provided on the base, and the antistatic layer, at that the antistatic layer is provided on at least a the reversible thermosensitive layer for printing or the substrate surface opposite to its surface on which the reversible thermosensitive layer for printing is provided, the antistatic layer comprises spherical fillers and a curable electroconductive polymer, and the spherical fillers satisfy the following expression (1): 4 ≤ the average diameter of particles of the spherical fillers/thickness of the antistatic layer ≤ 6… (1).

EFFECT: invention has improved antistatic properties.

12 cl, 15 dwg

The technical field

This invention relates to a reversible thermosensitive medium for printing, and a reversible thermosensitive element for printing.

Prior art

In recent years attracted the attention of the reversible thermosensitive medium for printing (also called "reversible thermosensitive medium for printing" and "environment for printing"), which may be temporarily formed image, i.e. the image can be erased when it is unnecessary. A typical known example of a reversible thermosensitive medium for printing is reversible thermosensitive medium for printing containing polymer, the developer (for example, phenolic compounds, the compound of aliphatic carboxylic acids or organic compound of phosphoric acid with aliphatic hydrocarbon group with a long molecular chain) and krasnobryzhyy component (for example, leucocrystal), in which the developer and krasnobryzhyy component dispersed in the polymer (see Patent documents 1 and 2).

Such a reversible thermosensitive medium for printing mainly contains, as a basis, a polyethylene terephthalate film having a magnetic layer for recording, and is used as a map with points (point card on the market in many cases. In addition, have been proposed RA is other personal reversible thermosensitive medium for printing,
which includes a thin base, a reversible thermosensitive layer for printing, provided on one surface of the substrate, an adhesive layer provided on the other surface of the base, and a variety of substrate materials, with reversible thermosensitive layer to seal the base and an adhesive layer laminated on various substrate materials (see, for example, Patent documents 3 to 6).

However, these proposed reversible thermosensitive medium for printing cards are limited in size because they are combined with optical memory IC (integrated circuit) contact type IC non-contact type or magnetic recording, and in fact most substrate materials are thick. These maps are of limited use. Therefore they are not suitable for tickets or labels for containers with frozen food products, industrial products, various chemical containers or the like, or large screens and various displays for merchandise flow management, process control, etc.

In addition to the above applications, reversible thermosensitive medium for printing should be the size of a sheet that is larger than the size of the map. Here "sheet size" means the size larger than the size of the card (54 mm × 85 mm).

Let the I thermosensitive medium for printing,
used as the sheet has a size greater than the size of the map with points or cards with a thick substrate material. Accordingly, while moving the printer reversible thermosensitive medium for printing sheet size is prone to problems with the creation of the charge due to, for example, contact between the reversible thermosensitive media for print and contact between each environment and the platen to move. In addition, the reversible thermosensitive medium for printing sheet size has a larger contact area, and, accordingly, this creates a problem with the accumulation of a larger amount of electrostatic charges. As a consequence, in the Assembly line electronic components or the like, when the paper sheet is called a control sheet, instruction sheet or sheet management process, replaced by sheet reversible thermosensitive medium for printing, having accumulated electrostatic charge, which is selected by the operator of the reversible thermosensitive media print, stacked on the discharge tray of the printer, an electrostatic charge is reversible thermosensitive medium for printing can destroy products such as electronic components. In addition, the reversible thermosensitive medium for printing stick to one another due to the accumulated electric is a static charge,
making them difficult to feed from the feed tray of the printer. In addition, each of the reversible thermosensitive medium to print the curl, which is caused by shrinkage after repeated printing/erasing temperature increases to values offending move.

Because of this presented several reports of reversible thermosensitive medium for printing having improved antistatic properties, in order to solve the above problems.

First, it was proposed reversible thermosensitive medium for printing, which at 20°C and 65% relative humidity had a surface resistance of 1×1013Ω/square or less, and the coefficient of static friction of the surface of 0.65 or less (see Patent document 7).

This proposed reversible thermosensitive medium for printing, however, exhibits low surface resistance, when it is measured in environments with low humidity. In particular, when the surface resistance is 1×109Ω/square or lower, the charge of the reversible thermosensitive medium for printing cannot be sufficiently corrected in environments with low humidity. Consequently, when repeating the printing and erasing in the environment with low humidity reversible thermosensitive environment for p is chati acquire charge and stick one to another in the printer,
causing problems associated with impaired movement. Also the twisting increases after repeated applications, thereby moving violation in the printer.

Secondly, there has been proposed a reversible thermosensitive medium for printing containing conductive powder with the size of the minor axis of 1 μm or less (see Patent document 8).

In accordance with this proposal reduces the amount of dust adhering to the reversible thermosensitive medium for printing. However, this document does not and is not intended to influence the condition of the surface of the reversible thermosensitive medium for printing. Actually, the condition of the surface of the reversible thermosensitive medium for printing causes difficulties when moving the reversible thermosensitive medium for printing feed roller, when the reversible thermosensitive medium for printing move in superimposed one on another condition in the printer. As a result, the sheets cannot be separated from one another, which causes a disturbance moving. In addition, when repeating the printing and erasing reversible thermosensitive medium for printing curled due to heat applied during the printing/Erasure that causes a disturbance moving in the printer.

Thirdly, there has been proposed a reversible thermosensitive craddle print
having one or more layers containing the conductive powder metal oxide semiconductor, which is a conductive pigment-coated tin oxide (see Patent document 9).

However, this document does not describe the state of the surface of the reversible thermosensitive medium for printing like the above document. Actually, the condition of the surface of the reversible thermosensitive medium for printing causes difficulties when moving the reversible thermosensitive medium for printing feed roller, when the reversible thermosensitive medium for printing move in superimposed one on another condition in the printer. In addition, when repeating the printing and erasing reversible thermosensitive medium for printing curled due to heat applied during the printing/Erasure that causes a disturbance moving in the printer.

At the same time in respect of the sheet for receiving an image by thermal transfer (heat-sensitive environment to print some messages are examples in which the antistatic properties were improved.

However, when this proposed sheet for receiving an image what erobertson used directly as a reversible thermosensitive medium for printing,
cannot be obtained a sufficient antistatic effect. This document does not describe an example in which an antistatic layer is provided on its upper surface. In this case, the sheet for receiving an image by thermal transfer becomes difficult to move the printer. Moreover, during repetitive printing/erasing this proposed sheet for receiving an image by thermal transfer, used as a reversible thermosensitive medium for printing, the reversible thermosensitive medium for printing stick one to another, which can cause a multifeed. Also the occurrence of Curling is not prevented sufficiently, and a reversible thermosensitive medium for printing twisted progressive image due to heat applied during repetitive printing/erasing, and this, ultimately, leads to disruption of moving.

Secondly, it was proposed heat-sensitive environment for print, including the back layer containing a conductive polymer and spherical fillers (see Patent document 11).

This proposed heat-sensitive environment for print showing beneficial effects from the point of view of preventing static charge and adhesion between environments. However, even when the heat-sensitive medium for printing directly is as reversible thermosensitive medium for printing,
these effects prevent static charge and adhesion between environments cannot be achieved sufficiently. Moreover, during repetitive printing/erasing this reversible thermosensitive medium for printing gets scratched and twisted progressive image due to heat applied during repetitive printing/erasing, and this, ultimately, leads to disruption of moving.

In order to solve the above problems, reported on a reversible thermosensitive medium for printing, which has an improved effect of preventing Curling.

For example, there was proposed a reversible thermosensitive medium for printing, comprising a protective layer on the front surface and the back coating layer, both of which are formed from a polymer curable by UV radiation, while the dynamic coefficient of friction is 0.3 or more between the surfaces of the protective layer and the back coating layer, and the dynamic coefficient of friction is 0.3 or less between the surface protective layer (Patent document 12).

This proposed a reversible thermosensitive medium for printing has the effect of preventing Curling. However, the reversible thermosensitive medium for printing, when it is used directly, the program is retait charge after repetitive printing/erasing.
Consequently, the reversible thermosensitive medium for printing stick one to another that causes a disturbance moving. In addition, the properties of the surface of the reversible thermosensitive medium for printing change due to heat and pressure applied by the cylinder, and heating the erase node during repetitive printing/erasing that causes a disturbance moving. Moreover, when the reversible thermosensitive medium to print incorrectly entered into the printer so that its front and back surfaces of the inverted, creates a difference in the coefficient of friction between the rear surface or between the protective layers, which causes a disturbance moving.

Also proposed a reversible thermosensitive medium for printing having improved antistatic effect and an effect of preventing Curling, which includes a back layer containing electroconductive acicular aggregates of titanium oxide coated with tin oxide alloyed with antimony, and a polymer curable by UV radiation (see Patent document 13).

This proposed a reversible thermosensitive medium for printing has a good antistatic effect and an effect of preventing Curling. This document, however, does not describe the prevention of adhesion between environments. In operating punctured stick one to another by water,
oil or the like that may cause a multifeed. In addition, antimony is a harmful substance to the environment. Accordingly, there is a need to develop a reversible thermosensitive medium to be printed, formed from a material that creates less stress on the environment.

As described above, in the present time are not provided yet reversible thermosensitive medium for printing and related technologies, which meet all the requirements to prevent the accumulation of static charge, Curling, adhesion between the media due to oil, water or the like during the application and scratching after repeated printing/erasing, and requirements manifestations excellent ability to move, although there are some other methods of preventing accumulation of static charge and twisting.

List of links

Patent documents

Patent document 1: Laid patent application Japan (JP-A) No. 05-124360

Patent document 2: JP-A No. 06-210954

Patent document 3: JP-A No. 2000-094866

Patent document 4: JP-A No. 2000-251042

Patent document 5: JP-A No. 2001-063228

Patent document 6: JP-A No. 2002-103654

Patent document 7: JP-A No. 11-254822

Patent document 8: JP-A No. 10-250239

Patent document 9: JP-A No. 11-091243

Patent document 10: J-A No. 11-078255

Patent document 11: JP-A No. 2006-240199

Patent document 12: JP-A No. 08-187941

Patent document 13: JP-A No. 2005-193564

The invention

Technical problem

This invention is directed to solving the above problems and achieving the objectives below. Namely, the purpose of this invention is to provide a reversible thermosensitive medium for printing, which meets all the requirements to prevent the accumulation of static charge, Curling, adhesion between the media due to oil, water or the like during the application and scratching after repeated printing/erasing, and requirements manifestations excellent ability to move; and a reversible thermosensitive element for printing.

Solution

Means for solving the above-mentioned existing problems are as follows.

<1> Reversible thermosensitive medium for printing, including:

basis

the reversible thermosensitive layer for printing, provided on the base, and

antistatic layer,

in which an antistatic layer provided at least on the reversible thermosensitive layer for printing or the surface of the substrate opposite the surface on which is provided a reversible thermosensitive layer for printing,

<2> Reversible thermosensitive medium for printing in accordance with <1>, in which the surface of the antistatic layer is covered with spherical fillers, the extent of coverage from 2% to 10%.

<3> Reversible thermosensitive medium for printing in accordance with <1> or <2>, in which the average particle diameter of the spherical filler is from 10 μm to 20 μm.

<4> Reversible thermosensitive medium to be printed in accordance with any one of the items with <1> by <3>, in which the thickness of the antistatic layer is from 1 μm to 5 μm.

<5> Reversible thermosensitive medium to be printed in accordance with any one of paragraphs. with <1> <4>, in which the antistatic layer has a surface resistance of 1×109Ω/square or less.

<6> Reversible thermosensitive medium to be printed in accordance with any one of paragraphs. with <1> <5>, in which the curable conductive polymer is a conductive polymer, cured by UV radiation.

<7> Reversible thermosensitive medium for printing in accordance with <6>, in which an electrically conductive polymer, utverjdayut radiation,
has at least one basic skeleton selected from the group consisting of polythiophene, polyparaphenylene, polyaniline and polypyrrole.

<8> Reversible thermosensitive medium to be printed in accordance with any one of paragraphs. with <1> <7>, in which the reversible thermosensitive layer for printing contains electron-donating coloring compound and an electron-acceptor compound.

<9> Reversible thermosensitive medium for printing in accordance with <8>, in which the electron-acceptor compound is a phenolic compound containing an alkyl chain having 8 or more carbon atoms.

<10> Reversible thermosensitive medium for printing in accordance with <8> or <9>, in which the electron-donating coloring compound is lenograstim.

<11> Reversible thermosensitive medium to be printed in accordance with any one of paragraphs. with <1> <10>, in which a reversible thermosensitive medium for printing is formed in the form of a card or sheet.

<12> Reversible thermosensitive element for printing, including:

the section information storage and

section reversible image playback,

in which section of the reversible image playback contains a reversible thermosensitive medium to be printed in accordance with any one of paragraphs. <>
<11>.

<13> Reversible thermosensitive element for printing in accordance with <12>, in which the section information storage and section reversible image playback integrated.

<14> Reversible thermosensitive element for printing in accordance with <12> or <13>, in which the storage section is information selected from the group consisting of a magnetic layer for recording, magnetic stripe, IC memory, optical memory card RF-ID tag (radio frequency identification), disk, disk cartridge, the tape cartridge.

<15> Reversible thermosensitive element to be printed in accordance with any one of paragraphs. <12> <14>, further comprising a section for printing.

The advantages of this invention

This invention can provide a reversible thermosensitive medium for printing, which meets all of the properties in respect of preventing accumulation of static charge, Curling, adhesion between the media due to oil, water or the like during the application and scratching after repeated printing/erasing, and in relation to excellent ability to move; and a reversible thermosensitive element for printing. They can solve the above existing problems and achieve the above goals.

A brief description of che is the intellectual property

Fig. 1 is a schematic view of a typical label RF-ID.

Fig. 2 is a schematic view of a reversible thermosensitive medium for printing, in which the label RF-ID is fixed on the surface of the back layer.

Fig. 3A is a schematic view of an example industrial rewritable sheet (reversible thermosensitive medium for printing), in which "a" denotes a section of the reversible image playback and "b" denotes the barcode.

Fig. 9 is a schematic view of a typical apparatus for image processing according to this invention.

Fig. 10 is a schematic view of a typical apparatus for image processing according to this invention.

Fig. 11 is a schematic view of a typical apparatus for image processing according to this invention.

Fig. 12 is a schematic view of a typical apparatus for image processing according to this invention.

Fig. 13 is a schematic view of a typical apparatus for image processing according to this invention.

Fig. 14 is an image obtained by an electronic microscope, a typical antistatic layer of the reversible thermosensitive medium for printing by Dan the WMD invention.

Fig. 15 is a schematic view of the cross-section of a typical antistatic layer of the reversible thermosensitive medium for printing according to this invention, in which a indicates the spherical filler and "b" denotes a binder polymer.

Description of embodiments

(Reversible thermosensitive medium for printing)

A reversible thermosensitive medium for printing according to this invention includes at least a base, a reversible thermosensitive layer for printing and an antistatic layer and, if necessary, further includes other layers such as a protective layer and back layer.

<Base>

Shape, structure and size of the canvas are not limited to a particular way and may be appropriately selected depending on the purpose. Regarding form the basis of, for example, a flat shape. Regarding structure, the base may have a single layer structure or a multilayer structure. Regarding the size of the reversible thermosensitive medium for printing can be appropriately selected depending on the purpose.

Examples of the substrate include inorganic materials and organic materials. Examples of inorganic materials include glass, quartz, silicon, silicon oxide, aluminum oxide, SiO2and the metal. Primarygames materials include paper,
derivatives of cellulose, such as triacetylcellulose, synthetic paper, polyethylene terephthalate, polycarbonate, polystyrene and polymethylmethacrylate. They can be used individually or in combination.

To improve adhesion of a coating layer of the base is preferably modified by corona treatment, oxidation treatment (using, for example, chromic acid), etching processing, easy handling adhesive or antistatic treatment. The base preferably is bleached by adding a white pigment such as titanium oxide.

Base thickness is not limited to a particular way and may be appropriately selected depending on the purpose. It is preferably from 50 μm to 2000 μm, more preferably from 100 μm to 1000 μm.

<a Reversible thermosensitive layer for printing>

The reversible thermosensitive layer for printing is a thermosensitive layer for printing which reversibly modified color pigment and which contains at least the reversible heat-sensitive material for printing, in a reversible way of changing in color depending on temperature, preferably contains a binder resin and, if necessary, further contains other ingredients. Reversible is emperature-sensitive material for printing is changed in color by a combination of changes of the transmittance of light,
reflectivity, wavelength of absorption and the degree of scattering of light.

Reversible heat-sensitive material for printing is not limited in a particular way, provided that its transparency and color tone changed in a reversible way by the application of heat, and can be appropriately selected depending on the purpose. His examples include the material that goes into the state of the first color at a first temperature that is higher than the normal temperature, and enters the state of the second color by heating at a second temperature that is higher than the first temperature, and then cooled. In particular, especially preferred is a material in which the state of the color changes when the first temperature and the second temperature.

Specific examples include material that enters the transparent state at a first temperature and becomes opaque state at a second temperature (see JP-A No. 55-154198), the material in which color is displayed at the second temperature and the color is erased when the first temperature (see JP-A No. 04-224996, 04-247985 and 04-267190), the material that goes into the opaque state at a first temperature and becomes transparent state at a second temperature (see JP-A No. 03-169590), and the material in which black, red and blue etc which are the first temperature and the color data are erased when the second temperature (JP-A No. 02-188293 and 02-188294).
In particular, it is preferable for a system using electron-donating coloring compound (ceskobratrska component) and electron-acceptor compound (developer), described below.

<<Electron-donating coloring compound>>

Electron-donating coloring compound is not limited to a particular way and may be appropriately selected depending on the purpose. His examples include leucocrystal.

Leucocrystal is a colorless or pale colored dye precursor, which is not limited in a particular way and may be appropriately selected from well-known in this field. Their examples include leucosolenia such triphenylethylene connection triarylmethane connection fluorenone compounds, phenothiazine compounds, diflorasone compounds, xanthene compounds, indicative connection styropianowe connection azatadine connection chromen-pyrazolone compounds, methine compounds, adminisnrative connection administravie connection hintline connection diatoxanthin connection and balkonowe connection. Among them leucocrystal on the basis of fluorenone compounds and ftoridnykh compounds are preferred from the point of view proyavlena is excellent properties in respect of svetoprestavlenie/erase
color, persistence during long-term storage, etc. Leucocrystal on the basis of fluorenone compounds and ftoridnykh compounds are not limited to a particular way and may be appropriately selected depending on the purpose. Their examples include leucocrystal exhibiting black color, such as 3-diethylamino-6-methyl-7-anilinophenol, 3-(N-ethyl-N-p-toluidino)-6-methyl-7-anilinophenol, 3-di(n-butylamino)-6-methyl-7-anilinophenol and 3-n-methyl-N-propylamino-6 methyl-7-anilinophenol; leucocrystal exhibiting red color, such as 3-diethylamino-7,8-benzofuran, 3-(N-ethyl-N-isoamyl)-7,8-benzofuran, 1,3-dimethyl-6-diethylaminotoluene, 1,3-dimethyl-6-di-n-butylaniline, 3 diethylamino-7-methylfluorene and 3,3-bis(1-n-butyl-2-methylindol-3-yl)phtalic; leucocrystal exhibiting blue color, such as crystal violet lactone, 3-(4-diethylamino-2-ethoxyphenyl)-3-(1-ethyl-2-methylindol-1-yl)-4-adapterid and 3-(4-diethylaminophenyl)-3-(1-ethyl-2-indol-3-yl)phtalic; leucocrystal having absorption in the infrared region, such as 10-diethylamino-2-ethylbenzo[1,4]triazino[3,2-b]fluoran, 3,3-bis(1-n-butyl-2-methylindol-3-yl)ftale, 3,3-bis(4-diethylamino-2-ethoxyphenyl)-4-adapterid, 3-[2,2-bis(1-ethyl-2-methyl-3-indolyl)vinyl] -3-(4-diethylaminophenyl)ftale and 3-[1,1-bis(4-diethylaminophenyl)ethylene-2-yl]-6-dimethylaminophenyl. Among them, from the point of view pravleniyasiga hue and properties svetoprestavlenie/erase
preferred are 2-aniline-3-methyl-6-disubstituted aminofluorene, such as 2-aniline-3-methyl-6-diethylaminotoluene and 2-aniline-3-methyl-6-di(n-butylamino)fluoran; crystal violet lactone, 3-(4-diethylamino-2-ethoxyphenyl)-3-(1-ethyl-2-methylindol-1-yl)-4-adapterid. They can be used individually or in combination. Layers exhibiting different colors can be layered one on top of another, to obtain a multicolor or saturated color.

<<Electron-acceptor compound>>

Electron-acceptor compound is not limited in a particular way, provided that it can reversibly implemented manifestation of color and the color erasing by heat as the driving force. Preferred are compounds each having in the molecule one or more structures selected from (1) structure with manifesting ability, which consists in the exercise of the degree of color development of electron-donor coloring compound (ceskobratrska component) (e.g., phenolic hydroxyl groups, carboxylic acid groups and phosphoric acid), and (2) patterns, regulatory intermolecular bond strength (for example, the structure associated with long-chain hydrocarbon group. Connecting part may contain divalent or nogova entou linking group,
including heteroatom, and long-chain hydrocarbon group may have at least one of the same linking group or aromatic group. Especially preferred is a phenolic compound represented by following General formula (1) and having 8 or more carbon atoms.

General formula (1)

In the General formula (1), n is an integer from 1 to 3.

R1 is a substituted or unsubstituted aliphatic hydrocarbon group having 2 or more carbon atoms, preferably 5 or more carbon atoms, more preferably 10 or more carbon atoms. R2is an aliphatic hydrocarbon group having from 1 to 14 carbon atoms, preferably from 8 to 14 carbon atoms. They can be used individually or in combination.

Aliphatic hydrocarbon group may be linear or branched and may have an unsaturated bond. Examples of the substituent that is associated with the hydrocarbon group include hydroxyl group, halogen atom and alkoxygroup.

When the sum of carbon atoms contained in the groups represented by R1and R2is 7 or less, the ability to erase the color and stability for the manifestation black is the fall.
Accordingly, the sum of carbon atoms contained in the groups R1and R2, is preferably 8 or more, more preferably 11 or more.

X represents a divalent group containing an atom N or O, preferably an amide group or a urea group, even more preferably urea group.

Through the use of electron-acceptor compound (developer) in combination with a compound having in the molecule at least one group-NHCO -, and at least one of the group-OCONH - and serving as a catalyst for the Erasure color, is induced by intermolecular action between the accelerator erase the color and developer in the process of reaching the erased state, whereby the properties in respect of svetoprestavlenie/erase improve, which is appropriate. Accelerator erase color is not limited to a particular way and may be appropriately selected depending on the purpose. Its preferred examples include those represented by following General formulas (2) through (8).

The ratio of the electron-donating coloring compound (ceskobratrska component) to the electron-acceptor compound (developer) in the mixture is not defined rigidly established as suitable interval varies depending on the combination of the compounds used, and the molar ratio of the developer to krasnobrizhaya component is preferably from 0.1/1 to 20/1, more preferably from 0.2/to 10/1.
When the amount of the developer more than the upper limit or below the lower limit of the above range, the density of color in the state of manifestation decreases, which may cause problems.

In addition, when you use an accelerator erase color, the number of accelerator erase color is preferably from 0.1% by mass to 300% by weight, more preferably from 3 mass% to 100 mass% with respect to the developer. This krasnobryzhyy, the component developer can be used in a state where they are enclosed in microcapsules.

<<a Binder polymer>>

The binder polymer is not limited in a particular way, provided that he can link the reversible thermosensitive layer for printing and can be appropriately selected depending on the purpose. As a binder polymer are well known polymers can be used individually or in combination. In particular, to improve the durability for repeated use, more preferred are polymers curable by heating, ultraviolet radiation or electron beams. Especially preferred are thermosetting polymers that contain a crosslinking agent such as isocyanate compound.

Thermoset polymer is not limited to specific about the time and can be appropriately selected from known polymers depending on the target destination.
His examples include polymers having a group reactive with a crosslinking agent (for example, hydroxyl group or carboxyl group), and polymers obtained by copolymerization between a monomer having hydroxyl group, carboxyl group, etc. and another monomer. Its specific examples include phenoxypropane, polyvinyl butyral polymers, azeotropically polymers, atsetobutirattselljuloznye polymers, akrilovye polymers, polyesterpolyol polymers and poliuretanovye polymers. Among them, particularly preferred are akrilovye polymers, polyesterpolyol polymers and poliuretanovye polymers.

In the reversible thermosensitive layer for printing ratio by weight between the actual pigment component and a binder polymer is preferably 1 (krasnobryzhyy component): from 0.1 to 10 (binder polymer). When the amount of the binder polymer is too low, the heat resistance of the reversible thermosensitive layer for printing may be insufficient. At the same time, when the amount of the binder polymer is too large, the density shown color can decrease, causing problems.

<<Other ingredients>>

Other ingredients contained in the reversible thermosensitive layer for printing, do not limit the I in a special way and can be appropriately selected depending on the purpose.
Their examples include a crosslinking agent, a surfactant, a plasticizer, a conductive agent, filler, antioxidant, photostabilizer, stabilizer manifestations of colors and accelerator erase color.

A crosslinking agent is not limited in a particular way and may be appropriately selected depending on the purpose. Its examples include isocyanates, such as hexamethylenediisocyanate (HDI), tolylenediisocyanate (TDI) and xylylenediisocyanate (XDI); their adducts with trimethylolpropane and the like; their Buryatsky type; their isocyanurate; and blocked isocyanates.

Thus, when the reversible thermosensitive layer for printing is sewn, the content of the gel fraction of crosslinked reversible thermosensitive layer for printing is preferably 30% or higher, more preferably 50% or higher, more preferably 70% or higher. When the content of the gel fraction of less than 30%, the reversible thermosensitive layer for printing may have a poor durability, because the degree of crosslinking is insufficient.

Surfactant is not limited to a particular way and may be appropriately selected from known surface-active substances depending on the target destination. Its examples include anionic surface-active substances is about,
cationogenic surfactant, nonionic surfactant and amphoteric surfactant.

The plasticizer is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include esters of phosphoric acid, esters of fatty acids, esters of phthalic acid, esters of dibasic acids, glycols, plasticizers based on complex polyester and epoxy plasticizers.

-Method of forming a reversible thermosensitive layer for printing

Method of forming heat-sensitive layer for printing is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include (1) a process comprising covering the basics of the solution for forming the reversible thermosensitive layer for printing, which is prepared by dissolving or dispersing in a solvent a binder polymer, electron-donating coloring compound and an electron-acceptor compounds, and evaporation of the solvent, whereby is formed into a sheet and sew the sheet simultaneously with the molding or after molding in the form of a sheet, (2) a process comprising covering the basics of the solution for forming a reversible thermochemical the CSOs layer for printing,
which is prepared by dispersing electron-donating coloring compound and an electron-acceptor compound in a solvent containing only dissolved in the binder resin, and solvent evaporation, whereby is formed into a sheet and sew the sheet simultaneously with the molding or after molding in the form of a sheet, and (3) a method including heating, melting and mixing a binder resin, an electron-donating coloring compound and an electron-acceptor compounds without the use of solvent, molding the molten mixture in the form of a sheet, followed by cooling and stitching. In these ways may also be molded in the form of a sheet reversible thermosensitive medium for printing without using the framework.

The solvent used in the method (1) or (2)varies depending on, for example, the type of binder polymer, electron-donating coloring compound and an electron-acceptor compound and cannot be defined rigidly established. Its examples include tetrahydrofuran, methyl ethyl ketone, methyl isobutyl ketone, chloroform, carbon tetrachloride, ethanol, toluene and benzene. When this electron-acceptor compound dispersed in the form of particles in the reversible thermosensitive layer for printing.

For reversible heat-sensitive layer for the PE the ATI showed high performance,
suitable for a material for forming the coating, various pigments, defoamers, pigments, dispersing agents, slip agents, antiseptics, crosslinking agents and plasticizers can be added to the solution for forming a coating used to obtain the reversible thermosensitive layer for printing.

The method of applying a solution for forming a coating used to obtain the reversible thermosensitive layer for printing, is not limited to a particular way and may be appropriately selected depending on the purpose. For example, while a continuous basis, molded roll machine, or it is cut into sheets, moves, based on the cover with a solution for forming a coating by applying a known method such as doctor blade coating, air coating, wound-wire rod coating by spraying, coating air squeegee, coating, rod coating irrigation, coating engraved cylinder, coating roller, coating, reverse roller coating by dipping or coating extrusion head.

The conditions of drying of a solution for forming a coating used to obtain reversible Termocom twitterlogo layer for printing,
not limited to a particular way and may be appropriately selected depending on the purpose. For example, the temperature is in the range of from about room temperature to about 140°C, and the time is from about 10 minutes to about 1 hour.

In particular, to form a defect-free coating, liquid coating material may be processed prior to or at the time of filing, to thereby remove impurities, to prevent the inclusion of air bubbles and to prevent aggregation of the dispersed particles. More specifically, the liquid coating material is passed through an ordinary filter paper, grid (for example, a stainless steel mesh or nylon mesh), the filter of natural or synthetic fibers (e.g. cotton filter or filter, carbon fiber or membrane (e.g., membrane filter). Alternatively, the liquid coating material is treated with ultrasound for 1 minute to 200 hours, preferably 10 minutes to 80 hours.

In addition, the coating is preferably performed in a clean room of class 10,000 or below. Drying is preferably performed as follows. Namely, the air or inert gas, such as nitrogen, is passed through the filter and the desiccant and then heated and thus treated gas is blown to arena surface,
the back surface or both surfaces. Among others, preferably filter when using cotton filter or membrane filter and ultrasonic treatment. The above described device is chosen appropriately and used to improve the uniformity of the coating layer.

The binder polymer in the reversible thermosensitive layer for printing can be overiden through, for example, heating, irradiation with UV radiation and electron beam irradiation.

When the binder polymer in the reversible thermosensitive layer for printing is a thermoset polymer, it is preferable that the curing is not necessarily performed after coating and drying. This curing may promote crosslinking in the case of thermal crosslinking. In other cases, the curing can reduce the content of residual solvent, in order to stabilize the quality. Curing can be performed by heat treatment at relatively high temperature for a short time or at a relatively low temperature for long time using, for example, thermally camera. The curing conditions are not limited in a particular way and may be appropriately selected depending on the purpose. From the point SP is of reactivity,
the curing is preferably performed by heating at a temperature of from about 30°C to about 130°C for from about 1 min to about 150 hours, more preferably at a temperature from 40°C to 100°C for from about 2 minutes to about 120 hours. In addition, the phase of the stitching may be provided in addition to the stage of drying. Conditions under stitching is not limited to a particular way and may be appropriately selected depending on the purpose. Stage crosslinking is preferably performed by heating at a temperature from 40°C to 100°C for from about 2 minutes to about 120 hours.

The irradiation with ultraviolet rays may be carried out using known device for ultraviolet radiation. Examples of devices include those that are supplied, for example, a light source, illumination, power supply, cooling node and the node to move.

The light source is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include mercury vapor lamp, metal halide lamp, a gallium lamp, a mercury-xenon lamp and a pulsed lamp. The wavelength of the light source can be appropriately selected depending on the wavelength of the absorption in ultravio is Etowah part of the spectrum of the initiator of photopolymerization and photopolymerization accelerator,
added to the composition for reversible thermosensitive medium for printing.

The conditions of irradiation with ultraviolet radiation is not limited to a particular way and may be appropriately selected depending on the purpose. For example, the light output of a lamp and the speed of movement can be determined depending on the energy of irradiation required for crosslinking of the polymer.

The electron beam irradiation may be performed when applying the known device for electron beam irradiation. Device for electron beam irradiation can be roughly divided into two types: device scan type (scan beam) and device ascanius type (beam covering a certain area). What type to use can be determined on the basis of the irradiated area and the exposure dose. Conditions of electron beam irradiation can be determined by a known method depending on the dose required for crosslinking of the polymer.

The thickness of the reversible thermosensitive layer for printing is not limited to a particular way and may be selected depending on the purpose. It is preferably from 1 μm to 20 μm, more preferably from 3 μm to 15 μm.

Since the density of the degree of color development is reduced when the thickness of rtimage thermosensitive layer to print too small
the contrast of the images can be reduced. On the other hand, when the thickness is too large, thermal distribution in the layer becomes wide, and formed parts, where the manifestation of color is not achieved, as the temperature reaches the temperature the degree of color development and, accordingly, it becomes impossible to obtain the desired density, the degree of color development.

<Antistatic layer>

The antistatic layer is the top layer, which is provided at least on the reversible thermosensitive layer for printing or the surface of the substrate opposite the surface on which is provided a reversible thermosensitive layer for printing. The antistatic layer contains at least a spherical fillers and curing the conductive polymer and, if necessary, further contains other ingredients such as other fillers, lubricant and a color pigment.

This antistatic layer may also have the function described below, the protective layer when it is provided on the reversible thermosensitive layer for printing. Alternatively, the antistatic layer may also have the function described below, the back layer provided on the substrate surface opposite to its surface provided with reversible thermocast is sustained fashion layer for printing.

The ratio of the average particle diameter of the spherical fillers to the thickness of the antistatic layer is not limited in a particular way, provided that it is from 4 to 6, and may be appropriately selected depending on the purpose. The ratio is preferably from 4.2 to 5.8, more preferably from 4.5 to 5.5. When the ratio is less than 4, while water or the like on the surface of the medium penetrates between the fillers through the capillary action of the convex part fillers protruding from the surface of the coating film is small and the water forms a convexity between the fillers due to surface tension, resulting environment can easily stick to each other. At the same time, when the ratio is more than 6, spherical fillers can flake off. The ratio of from 4 to 6 is favourable to prevent adhesion between the media under the action of oil or water to prevent the formation of scratches and shows great ability to move.

When the sphericity of the spherical filler is preferably from 070 to 1.00,
more preferably from 0.80 to 1.00, particularly preferably from 0.90 to 1.00.

The degree of coverage of the surface of the antistatic layer spherical fillers is not limited to a particular way and may be appropriately selected depending on the purpose. It is preferably from 2% to 10%, more preferably from 2% to 8%, especially preferably from 2% to 5%. When the coverage is less than 2%, can occur following adverse effects: the formation of scratches due to repeated printing and erasing; and reducing the effect of preventing adhesion between the media under the action of oil or water. At the same time, when the degree of coverage of more than 10%may cause the following adverse effects: exfoliation of the spherical fillers; the effect of preventing accumulation of static charge due to the fact that the surface excessive way covered with them; and the effect of preventing adhesion due to water, because water penetrating through capillary action, forming a bulge between tightly spaced fillers due to surface tension. The degree of coverage from 2% to 5% is favorable to prevent scratching.

The degree of coating the surface of the antistatic layer is feericheskie fillers can be measured using image,
obtained by electron microscopy.

More specifically, regarding spherical fillers present in the specified area, measure the diameter of each spherical filler and then calculates the two-dimensional image of the area of the spherical filler. Measured values can be used to calculate the required degree of coverage of the following equation (2). Thus, when the spherical filler is covered with a curable conductive polymer, the diameter of the filler is the distance from one point on the basis of a convex part formed by covering the curable conductive polymer, to another point located on the base opposite the first point in the transverse direction of the convex part.

The degree of coverage %=(sum of areas of all spherical fillers)×100/(the area of the specified region)Equation (2)

Fig. 14 is a two-dimensional image of the antistatic layer of the reversible thermosensitive medium for printing according to this invention, obtained by electron microscopy, when the antistatic layer in the direction of its thickness. Fig. 15 is a schematic view of the cross-section of a typical antistatic layer let the second thermosensitive medium for printing according to this invention.
In Fig. 14 the sum of the two-dimensional space of all spherical fillers, located on the antistatic layer in the specified area (A), can be calculated as follows. More specifically, when the spherical fillers are open, the two-dimensional area of each of the spherical filler is calculated from the diameter (d1). At the same time, when the spherical fillers coated with curable conductive polymer, a two-dimensional area of each of the spherical filler is calculated from the diameter (d2) the area defined by a boundary, where the thickness of the cured conductive polymer is greater than its average thickness (t). Then calculate the sum of the squares of all spherical fillers.

The average particle diameter of the spherical filler is not limited in a particular way, provided that it satisfies the above Equation (1), and may be appropriately selected depending on the purpose. Their average particle diameter is preferably from 10 μm to 20 μm, more preferably from 12 μm to 18 μm, particularly preferably from 13 μm to 16 μm. When the average particle diameter less than 10 microns, although water or the like on the surface of the medium penetrates between the fillers through the capillary action of the convex part fillers protruding from the surface of the coating film is small and the ode forms a convexity between the fillers due to surface tension,
hence, the environment can stick one to another, and the effect of preventing adhesion cannot be achieved in some cases. At the same time, when the average particle diameter is more than 20 μm, spherical fillers or flake. Concerning the mean diameter of the particles range from 10 μm to 20 μm is favorable to prevent adhesion between environments due to water.

Here, the "average particle diameter" refers to the average particle diameter based on volume (volume average particle diameter). The average particle diameter measured by a known method such as a method using particle size analyzer by laser diffraction radiation using the method of laser diffraction/scattering based on the mie theory.

The thickness of the antistatic layer is not limited in a particular way, provided that it satisfies the above Equation (1) and may be appropriately selected depending on the purpose. It is preferably from 1 μm to 5 μm, more preferably from 2 μm to 4 μm. When its thickness is less than 1 μm, no effect preventing twisting or antistatic effect cannot be obtained on the surface of the reversible thermosensitive layer for printing. At the same time, when its thickness is greater than 5 μm, there can be obtained the effect predot the stop twisting on the surface of the antistatic layer.
Thickness from 1 μm to 5 μm is favorable to prevent accumulation of static charge and twisting.

Here the thickness of the antistatic layer refers to the thickness of the binder polymer antistatic layer, excluding fillers, such as spherical fillers. For example, when the liquid coating material for forming an antistatic layer containing spherical fillers, is used to form the antistatic layer, the thickness of the antistatic layer is determined by measuring the thickness of the polymer binder in the region where the spherical fillers are missing. The thickness can be measured using a film thickness gauge, such as a thickness gauge with a measuring tip for measuring film thickness.

Thickness is the average thickness of the antistatic layer, which preferably is the average of thicknesses measured at 10 or more points, more preferably an average of thicknesses measured at 20 or more points, particularly preferably an average thickness, measured in 30 or more points.

Also in relation to the "thickness" of each of the other layers, in addition to the antistatic layer thickness is the average thickness of the layer, which preferably is the average of thicknesses measured at 10 or Bo is her points,
more preferably the average thickness, measured in 20 or more points, particularly preferably an average thickness, measured in 30 or more points.

The antistatic layer contains a curable conductive polymer as a binder polymer.

Curable conductive polymer is not limited in a particular way and may be appropriately selected depending on the purpose. Its examples include polymers containing, as a part thereof, the frame serving as the electrically conductive components, such as polythiophene, polyparaphenylene, polyaniline or polypi the roll.

Also curable conductive polymer is not limited in a particular way and may be appropriately selected depending on the purpose. Its examples include an electrically conductive polymer, cured by ultraviolet (UV) radiation, thermosetting conductive polymer and conductive polymer, cured by electron beam, in that the electroconductive polymer, curable by UV radiation, is preferable. Especially preferred is a conductive polymer, curable by UV radiation, having at least one basic skeleton selected from the group consisting of polythiophene, polyparaphenylene, polyaniline and polypyrrole.

The monomer or oligomer conductive polymer, curable by UV radiation, is not limited to a particular way and may be appropriately selected depending on the purpose. Its monomer or oligomer may be commercially available product, examples of which include ASRC-1 (product of Arakawa Chemical Industries, Ltd.), SEPLEGYDA HC-A04 (product by SHIN-ETSU FINETECH CO., LTD.), Denatron P-490F and Denatron P-492 (products Nagase ChemteX Corporation) and U601LPA, U201PA60 and U201PAT80 (products of Shin-Nakamura Chemical Co., Ltd.).

The monomer or oligomer thermosetting conductive polymer is not limited in a particular way and may be going the way they are selected depending on the purpose.
Its monomer or oligomer may be commercially available product, examples of which include UR-AS601 and UR-AS625 (the company's products Arakawa Chemical Industries, Ltd.), SEPLEGYDA AS-D06 (product by SHIN-ETSU FINETECH CO., LTD.) and Denatron P-485 and Denatron P-486 (the company's products Nagase ChemteX Corporation).

In order otvetit monomer or oligomer conductive polymer, curable by UV radiation, it is necessary to use the initiator of photopolymerization and the photopolymerization accelerator.

The initiators of photopolymerization roughly divided into radical initiators (for example, the initiator photodisintegration and the initiator removal of hydrogen and ionic initiators.

The initiator of photopolymerization is not limited to a particular way and may be appropriately selected depending on the purpose. His examples include isobutylbenzene, isopropylbenzene, benzonatate, benzoylmethyl, 1-phenyl-1,2-propandiol-2-(o-etoxycarbonyl)oxime, 2,2-dimethoxy-2-phenylacetophenone, hydroxycyclohexanone, diacetoxyscirpenol, 2-hydroxy-2-methyl-1-phenylpropane-1, benzophenone, chlorothioxanthone, 2-chlorothioxanthone, isopropylthioxanthone, 2-methylthionine and chlorine substituted benzophenone.

The photopolymerization accelerator preferably has the effect of accelerating the curing when using the initiators of photopolymerization to split the eating of hydrogen,
such as benzophenone and thioxanthone. Its examples include aromatic tertiary amines and aliphatic amines. Specific examples include complex isoamyl ether p-diethylaminobenzoic acid and complex ethyl ester of p-dimethylaminobenzoyl acid. They can be used individually or in combination.

The amount of initiator of photopolymerization or photopolymerization accelerator is preferably from 0.1 mass% to 20 mass%, more preferably from 1 mass% to 10 mass% relative to the total mass of the resin back layer.

<<Other components>>

In addition to the spherical filler and a curable conductive polymer, an antistatic layer may also contain other components such as other fillers and lubricant, if necessary.

Other fillers are not limited to a particular way and may be appropriately selected depending on the purpose. Their examples include conductive fillers.

Conductive fillers are not limited to a particular way and may be appropriately selected depending on the purpose. Their examples include products covered with tin oxide, for example, titanium oxide, potassium titanate, aluminum borate, silicon carbide and silicon nitride. Among them, particularly pre is respectful is titanium oxide,
covered with tin oxide, from the viewpoint of ease of control of the growth of crystals and stable obtaining crystals of uniform size. In addition, the titanium oxide coated with tin oxide, has such high strength that it cannot be destroyed during the dispersion in the preparation of liquid coating material. Accordingly, when forming the coating film, a titanium oxide coated with tin oxide, all this coarsens the consciousness of the surface of the coating film, while maintaining the strength and hardness of the surface, which is preferred.

The number above another filler contained in the antistatic layer is preferably from 1 mass% to 20 mass%.

Lubricant is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include synthetic waxes, vegetable waxes, waxes of animal origin, higher alcohols, higher fatty acids, esters and amides of higher fatty acids.

The method for forming the antistatic layer

The method for forming the antistatic layer is not limited to a particular way and may be appropriately selected depending on the purpose. His examples include a method comprising mixing a spherical filler, curing electric is provodnogo polymer and other components together in a solvent,
to prepare the mixture, the mixing/dispersion homogeneous image of the resulting mixture to prepare a liquid material for forming a coating of an antistatic layer and coating of the thus prepared liquid antistatic material layer.

Dispersing device used for dispersion liquid material for forming a coating of an antistatic layer, a method of coating and the method of drying/curing antistatic layer, etc. can be by known methods used for the above reversible thermosensitive layer for printing.

While the above liquid coating material may be prepared using, for example, the known device for dispersion of liquid coating material, such as vibromixer for paint, ball mill, attritor, three-roll mill, a KEDY mill, sand mill, DYNO mill and colloid mill.

The method of applying a coating of the antistatic layer is not limited to a particular way and may be appropriately selected depending on the purpose. For example, while a continuous basis, molded roll machine, or such basis as chopped leaves, moves, based on the cover with a liquid material for forming a coating by applying a known method such as doctor blade coating, air coating, wound-wire rod coating by spraying, coating air squeegee, coating, rod coating irrigation, coating engraved cylinder, coating roller, coating, reverse roller, Nan is giving coating by dipping or coating extrusion head.
Coated sheets are then moved to a drying apparatus with air circulation, in which it is dried at a temperature from 30°C to 150°C for 10 s to 10 min

Examples of the method of curing the monomer or oligomer cured conductive polymer in the antistatic layer include heating, irradiation with UV radiation and electron beam irradiation. For example, there may be used a known method such as the method described above curing of the binder polymer in the reversible thermosensitive layer for printing.

In the reversible thermosensitive medium for printing according to this invention, when the surface resistance of the antistatic layer is 1×1010Ω/square or less at 25°C and a relative humidity of 60%, you can expect to receive a satisfactory antistatic effect. The surface resistance of the antistatic layer is preferably from 1×109Ω/square or less at 25°C and relative humidity 60%, more preferably 1×109Ω/square or less under the conditions of 5°C and 30% relative humidity up to 35°C and a relative humidity of 85%.

When the surface resistance can be measured using, for example, is known for measuring the surface resistance.

In this invention an antistatic layer contains a spherical filler is cured conductive polymer.
In this configuration, leakage of electrostatic charge generated due to friction between the reversible thermosensitive medium for printing and platen during movement or friction between the reversible thermosensitive media for printing, instead of holding an electrostatic charge in the reversible thermosensitive media for printing. This is advantageous in that the adhesion of the reversible thermosensitive medium for printing can be prevented, and a reversible thermosensitive medium for printing does not absorb dust, causing print defects during printing/erasing. The inclusion of the spherical filler and a curable conductive polymer in the antistatic layer can prevent twisting and scratching due to repeated heat treatments when printing and erasing. In addition, spherical fillers satisfy the above Expression (1), and, accordingly, the fillers are manifested on the surface of the reversible thermosensitive medium for printing to form on her concave and convex parts. As a consequence, the ability to move is improved, and the adhesion between the media under the action of water, oil or the like during use can be prevented.

<Other layers>

In addition to the base, reversible thermocast is sustained fashion layer for printing and an antistatic layer,
a reversible thermosensitive medium for printing according to this invention may additionally include, if necessary, appropriate selection other layers such as protective layer, back layer, an intermediate layer, sublayer, photothermal layer, colored layer, air layer, reflective layer, adhesive layer, the adhesive layer and the adhesive. Each of these layers may have a single layer structure or a multilayer structure.

<<a Protective layer>>

A reversible thermosensitive medium for printing according to this invention may contain a protective layer on the reversible thermosensitive layer for printing with the aim of protecting the reversible thermosensitive layer for printing. The protective layer is not limited to a particular way and may be appropriately selected depending on the purpose. For example, the protective layer may be formed as one or more layers, and preferably provided on the top surface.

The protective layer may contain a binder resin and other components. The binder polymer contained in it, may be the same as that used for the reversible thermosensitive layer for printing. When the protective layer is an antistatic layer, the binder polymer is a curable conductive polymer.

The thickness of the protection which these layers is not limited to a particular way and may be appropriately selected depending on the purpose.
For example, it is preferably from 0.1 μm to 10.0 μm. When the thickness of the protective layer is less than 0.1 μm, the protective effect for thermosensitive layer is unsatisfactory in some cases. At the same time, when its thickness is greater than 10.0 μm, thermal sensitivity may be reduced.

<<Back layer>>

A reversible thermosensitive medium for printing according to this invention may contain a back layer on the surface (back surface) opposite to the surface on which is provided a reversible thermosensitive layer for printing. The back layer is not limited to a particular way and may be appropriately selected depending on the purpose. For example, the back layer may be a single layer or may be formed as multiple layers. In particular, the back layer preferably is open at the upper surface (the upper rear surface).

The back layer may contain a binder resin and, if necessary, other components such as a lubricant and a coloring substance. The binder polymer may be the same as those used for the reversible thermosensitive layer for printing. When the back layer is an antistatic layer, the binder polymer is a curable conductive polymer.>

The thickness of the back layer is not limited to a particular way and may be appropriately selected depending on the purpose. For example, it is preferably from 1 μm to 10 μm.

Lubricant is not limited to a particular way and may be appropriately selected depending on the purpose. For example, can be used lubricant used for the antistatic layer.

The dye is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include dyes and pigments. Among these pigments are preferred from the viewpoint of durability under repeated thermal treatments. When the back layer is colored, it is possible to distinguish between the front surface from the back surface of the reversible thermosensitive medium for printing.

In this invention as the protective layer and the back layer may be an antistatic layer, or a single layer of the protective layer and the back layer may be an antistatic layer. Preferably, at least the back layer is an antistatic layer.

In the reversible thermosensitive medium for printing according to this invention, the static friction coefficient between the back layer and the protective layer, the static from the cylinder is UNT friction between the back layer and the static coefficient of friction between the protective layers preferably are in the range of 0.1 or less.
This is so that you can avoid breaking move reversible thermosensitive media for printing in the printer, even when the reversible thermosensitive medium for printing posted by mistakenly so that the front and back surface upside down. A reversible thermosensitive medium to be printed, placed in the printer, move one after the other using a feed roller and razdelennoy site. When these static coefficients of friction are outside of 0.1, there is friction between the reversible thermosensitive media for printing. Consequently, the reversible thermosensitive medium for printing cannot be separated from one another by the force of friction when served one after the other using the feed roller and separation pad. The difference between these coefficients of friction preferably close to 0.

In addition, each of the static coefficients of friction between the back layer and the protective layer, between the back layer and between the protective layer is preferably from 0.05 to 0.3.

When the static friction coefficient is lower than 0.05, one reversible thermosensitive medium to be printed, placed on another reversible thermosensitive medium for printing, glides, potentially making it difficult to keep them in superimposed condition that results is it to low management capabilities.
In addition, the reversible thermosensitive medium to print easily slide one against the other, and, accordingly, the surface of the reversible thermosensitive media for printing rubbing one against another, forming scratches. At the same time, when the static coefficient of friction is higher than 0.3, the frictional force between the reversible thermosensitive media for printing increases. In the supply system, in relation to the friction force between the front surface of the reversible thermosensitive medium for printing and feeding roller, and the friction force between the rear surface of the reversible thermosensitive medium for printing and the separation pad, the friction force between the separation pad and the rear surface of the heat-sensitive environment is similar to the friction force between the reversible thermosensitive media for printing or less. Consequently, the reversible thermosensitive medium for printing cannot be moved, and is limited to the constructional size of the separation pad.

A reversible thermosensitive medium for printing according to this invention can be processed to give the desired shape depending on the intended application. For example, a reversible thermosensitive medium to the printing form in the form of a card, sheet, roll, etc. In this invention is reversible which I thermosensitive medium for printing is particularly preferably formed so
what is the paper size from A5 to A4, which is more than the card size (54 mm×85 mm). A reversible thermosensitive medium for printing, is formed in the form of maps, used as a prepaid card, card points, credit cards, etc. Reversible thermosensitive medium for printing, is formed in the form of a sheet having a size larger than the card, has a wider area to print and, accordingly, can be used as a General document, instruction sheet for process control, etc. in Addition, the reversible thermosensitive medium for printing does not include dust and, accordingly, may also be used, for example, in the clean room.

A reversible thermosensitive medium for printing according to this invention may contain multiple reversible thermosensitive layers for printing. In this case manifested hue thermosensitive layers for printing may be the same or different. In addition, the colored layer can be of any pattern formed by printing, such as offset printing or gravure printing, or when using an inkjet printer, printer with thermal transfer or sublimation printer type, on part or the entire area of the same surface, and heat-sensitive layer to print reversible thermosensitive medium for printing, Il is part of the opposite surface.
Moreover, the layer of varnish OP, mostly made of curable resin may be provided on part or the entire area of the colored layer. Examples of the pattern include letters, numbers, diagrams, pictures and information of the detected infrared radiation. Also any relevant constituent layers can simply be painted by the addition of dye or pigment.

Moreover, the reversible thermosensitive medium for printing according to this invention may be provided with a hologram for security. It can also be provided with a pattern, such as the image of man, a sign of the company or symbolic token, through the provision of relief or irregularities gravure printing, in order to give the figure the required quality.

More specifically, a reversible thermosensitive medium for printing according to this invention can, in particular, be used in a suitable way for the following reversible thermosensitive element for printing, devices for image processing and method of image processing according to this invention. In this invention the surface of the reversible thermosensitive medium printing means surface on the side of thermosensitive layer for printing and is not limited to the protective layer, but also means the whole or part of the surface is t,
which is brought into contact with thermal head, for example, the surface of the printed layer and the surface layer of the OP, in case of printing or erasing.

(Reversible thermosensitive element for printing)

Reversible thermosensitive element for printing according to this invention includes at least a storage section and section reversible image playback, including the above reversible thermosensitive medium for printing; and, if necessary, further includes other elements. In addition, in the reversible thermosensitive element for printing according to this invention, the section information storage and section reversible image playback preferably integrated. Moreover, the reversible thermosensitive element for printing according to this invention preferably includes a section for printing.

In the reversible thermosensitive element for printing according to this invention, when the section of the reversible image playback, able to reverse playback image and including the above reversible thermosensitive medium for printing, and storage section of the information provided on the same card (integrated), and some of the information stored in the storage section of the information is displayed in the reversible FOTS is otvedeniya image,
the owner of the card can confirm the information at a glance on the map, without using a special device, which is convenient. When the content of the section information storage overwritten reversible thermosensitive element for printing can be reused by rewriting the display section of the reversible image playback.

Section storing information is not limited to a particular way and may be appropriately selected depending on the purpose. Its examples include a magnetic layer for recording, magnetic stripe, IC memory, optical memory and a tag RF-ID. Particularly preferably used in a sheet medium having a size larger than the size of the map, IP, memory, and labels RF-ID. In this case the label RF-ID (input part of the RF-ID) consists of a crystal IC and the antenna connected to the crystal IP.

Reversible thermosensitive element for printing according to this invention includes a section of the reversible image playback, able to reverse playback image and including the above reversible thermosensitive medium for printing, and the storage section of the information in this section information storage is preferably labeled RF-ID. Fig. 1 is a schematic view of an RF tag ID 85. This label RF-ID 85 consists of a crystal IC 81 and the antenna 82, the military with crystal IP.
Crystal IC 81 is divided into four sections: section store information section of the control power supply, the transmission section and the receiving section, and each section assumes some of the functions and performs the transmission of information. Data transfer is performed through the transmission of information by means of electric waves between the linked label RF-ID antenna and the read/write node. More specifically, the antenna of the RF-ID receives electric waves from the read/write node, and an electromotive force is generated by the resonant action by using, for example, electromagnetic induction. As a consequence, the crystal IP label RF-ID operates so that the signal at the output of information in the crystal at the output of the RF tag-ID. This information is received by the antenna on the side of the read/write node and is recognized by the host to process data in the subsequent data processing by software.

Tag RF-ID formed in the form of label or card, and, as shown in Fig. 2, the label RF-ID 85 may be mounted on the reversible thermosensitive medium for printing according to this invention. Tag RF-ID 85 can be fixed on the surface of thermosensitive layer for printing or the surface of the back layer, but preferably it is mounted on the rear surface SL who I am.
In order to secure the label to the RF-ID on a reversible thermosensitive medium for printing, can be used a known adhesive or binder.

Fig. 3A and 3B show an example in which a reversible thermosensitive medium for printing applied to industrial rewritable sheet (reversible thermosensitive element for printing) 90. As shown in Fig. 3A, the section of the reversible display the image provided on the side of thermosensitive layer to be printed, and the label RF-ID may not be laminated on the reverse side (back layer), as shown in Fig. 3B. As shown in Fig. 2, the label RF-ID can be attached, however, the label RF-ID is preferably provided, taking into account the improved ease of use.

Fig. 4 is a schematic view of the method of application of industrial rewritable sheet with the use of a reversible thermosensitive medium for printing according to this invention (rewritable sheet) and labels RF-ID. Initially, information such as the name and quantity of the goods as supplied materials, write to the worksheet and label RF-ID and secured on the box for the collection and transportation of products, with subsequent review. During the subsequent process of technological instruction is provided for the supply of materials and information zapisyvaite rewritable sheet and label RF-ID,
to get a collection of technological instructions subsequent transition to the process. Then to the processed product is a rewritable sheet and label RF-ID as a collection of service manuals that have been recorded information service, and a rewritable sheet is returned after delivery and read information on delivery, and it is used again as normal commercial accounts.

A reversible thermosensitive medium for printing according to this invention may include such aspects as what the film contains a base 11, a reversible thermosensitive layer to print 13 and a protective layer 15 formed on the base 11, and the rear layer 16 formed on the back side of the framework 11, as shown in Fig. 5, or the film contains a base 11, a reversible thermosensitive layer to print 13, the intermediate layer 14 and a protective layer 15 formed on the base 11, and the rear layer 16 formed on the back side of the framework 11, as shown in Fig. 6. At least one layer of the protective layer and the back layer also functions as an antistatic layer containing a spherical filler and a curable conductive polymer.

These films (reversible thermosensitive medium for printing) in accordance with these aspects can be before occhialino used in various industrial rewritable sheets,
labeled RF-ID 85, as shown in Fig. 2. For example, as shown in Fig. 7A, it can be used in the form of a converted map-21 for reversible thermal papers have a section for printing 23. On the reverse side of the magnetic layer for recording and the back layer 24 is formed on the area of the section for magnetic recording, as shown in Fig. 7B.

Reversible thermosensitive element for printing (map)shown in Fig. 8A obtained by making in the form of a label and maps, section 26 of the reversible playback picture containing film, comprising a base, and the reversible thermosensitive layer for printing and a protective layer formed on the base. An in-depth plot 25 to host crystal of IP generated in the specified location on the reverse side of the card. As shown in Fig. 8B, the crystal IC 27 is embedded in the in-depth section 25 and fastened it. In the crystal IP 27 integrated circuit 233 is provided on the semiconductor substrate 232, and a lot of pins 234 are electrically connected to the integrated circuit 233 provided on the semiconductor substrate 232. These contact pin 234 is open on the back side of the semiconductor substrate 232, and an exclusive printer (read/write node) is used to read or overwrite the specified information by means shown is in electrical contact with the contact output 234.

Reversible thermosensitive element for printing according to this invention contains a reversible thermosensitive medium for printing according to this invention, which can prevent the accumulation of static charge, Curling, adhesion between the media due to oil, water or the like in the application and scratching after repeated printing/erasing, and also show excellent ability to move. Accordingly, for a reversible thermosensitive element for printing can be prevented accumulation of static charge, twisting, sticking and scratching, and it can be improved in terms of their ability to move. In the result, the desired image can be formed and erased on a reversible thermosensitive element to print at the desired timing. The formed image has a good contrast, clarity, etc. In the section information recording desired various pieces of information, such as a letter, picture, music and video, written and erased through a system for recording in accordance with the type of environment for recording, such as a magnetic thermosensitive layer for recording, a magnetic stripe, an IC memory, optical memory, label card, RF-ID, disk, disk cartridge, the tape cartridge.

For less is th least one of the reversible heat-sensitive label or print reversible thermosensitive element for printing according to this invention is not limited in a particular way,
and the image processing can be performed using different methods of image processing and device for image processing, and image preferably are formed and erased when the instrument is used for image processing according to this invention, is described below.

(Method of image processing and a device for processing images)

Device for image processing according to this invention includes at least one node from the node imaging and node erase the image and, if necessary, further includes other nodes that are selected in a suitable manner, such as the transfer node and the control node. The method of image processing according to this invention includes at least one stage of stage of image formation stage and erase the image and, if necessary, further includes other stages, selected in a suitable manner, such as stage movement and stage management.

The method of image processing according to this invention can be appropriately performed using the device for image processing according to this invention. Stage of image formation stage and erase the image can be appropriately performed using node imaging and node erase the picture is of, respectively.
Other stages can be performed using other nodes.

<Node imaging and phase imaging>

Node imaging is a host that is configured for heating the reversible thermosensitive medium for printing according to this invention, whereby a formed image. Phase imaging is a stage of heating the reversible thermosensitive medium for printing according to this invention, whereby a formed image.

Node imaging is not limited to a particular way and may be appropriately selected depending on the purpose. His examples include thermal print head and a device for training a laser. They can be used individually or in combination.

<Node erase the image and the stage of the erase image>

Node erase image is a node that is configured to heat the reversible thermosensitive medium for printing according to this invention, whereby blurring the image. Stage erasing the image represents a stage of heating the reversible thermosensitive medium for printing according to this invention, whereby erased images.

Examples of node erase the picture from the Oia,
which is configured to heat the reversible thermosensitive medium for printing according to this invention, whereby blurring the image, include hot stamp, ceramic heater, a heating roller, a heating unit, hot air, thermal print head and a device for training a laser. Among them, the ceramic heater, thermal head and the like are preferred.

Through the use of a ceramic heater device can be reduced in size and weight, and can also be obtained stable erased state, and can be produced images with good contrast. The set temperature of the ceramic heater is not limited to a particular way and may be appropriately selected depending on the purpose. It is preferably 110°C or higher, more preferably 112°C or higher, especially preferably 115°C or higher.

By applying thermal head device can be further reduced in size and weight, and can also be reduced power consumption, and can be obtained from the manual type with power from a battery. You can also use one of thermal head, which can print, and delete pictures. In this case, the device can be the t can be further reduced in weight and size.
In the case of printing and erasing when using a single thermal print head and new images can be printed after full erase old images, or you can use rewritable system, in which the old images are erased simultaneously by changing the energy of each image and then print the new image. In accordance with overwriting system printing speed increases as decreases the total time of printing and erasing images.

When applying the reversible thermosensitive element for printing (cards), including the sections reversible and reproduction section information storage, the device also includes a node configured to read the memory section storing information, and the node is configured to overwrite the stored information.

Node move phase move-

Node movement is not restricted in a particular way, provided that he is able to consistently move the reversible thermosensitive medium for printing, and may be appropriately selected depending on the purpose. His examples include the ribbon to move the platen to move and the combination of the tape to move and roll to move.

-Site management and stage management-

Userupdate is not limited in a particular way,
provided that he is able to adjust each stage. His examples include devices that are capable of handling each node, such as a sequence controller and the computer.

Now will be described with reference to Fig. 9-11 aspect of the complete method of image processing according to this invention using the device for image processing according to this invention. As shown in Fig. 9, the device 100 for processing the image includes a heated roller 96, thermal head 95 and the platen to move. In this device for image processing of the image printed on thermosensitive layer to be printed, erased by heating with a heated roller 96. Then processed the new information is printed on thermosensitive layer for printing by thermal head 95.

When the reversible thermosensitive medium for printing includes a tag RF-ID, as shown in Fig. 10 and 11, the device for image processing is further provided with a hub 99 for reading the RF-ID. In this case also included the aspect of the device for image processing parallel type shown in Fig. 11.

As shown in Fig. 10 and 11, the device 100 to the image processing first information tag RF-ID, mounted on a reversible thermosensitive medium to print the,
read the node 99 read/write RF-ID, and after the introduction of the new information in the RF tag-ID of the image printed on thermosensitive layer is erased by heating the heated roller 96. In addition, processed new information is printed on thermosensitive layer, for printing using a thermal head on the basis of the information which has been read and rewritten by the host to read/write RF-ID.

Instead of the host to read/write RF-ID can be used the device to read a barcode and a magnetic head. In the case of a device for reading barcode information of the barcode, which is already recorded on the reversible thermosensitive layer to print, read, and then the barcode and other visualized information recorded in the reversible thermosensitive layer to be printed, erased by a heated roller. After this new information is processed based on the information read from the barcode is printed in the form of a barcode and other visualized information on the reversible thermosensitive layer for printing by thermal head.

A device for processing the image, shown in Fig. 9 or 10, provided with a tray 97, which laid the reversible thermosensitive medium for printing. A reversible thermosensitive medium for which Ekati are selected one by one from the tray by way of the paper feed system with a friction lining.
Roaming reversible thermosensitive medium for printing moves the platen to move and then transmitted to the partition for read/write RF-ID, where data is read and written. In addition, the reversible thermosensitive medium for printing moves to the section of the heated roller, serving as the erase node, through the roller to move, and visualized information printed on the reversible thermosensitive medium to be printed, erased. After the reversible thermosensitive medium for printing has been moved to the section of thermal head, the new information is printed on the reversible thermosensitive medium for printing. Then the reversible thermosensitive medium for printing moves the platen to move, and a reversible thermosensitive medium for printing is discharged from the upper section to eject the paper.

The surface temperature of the heated roller is not limited in a particular way, provided that its temperature is set as appropriate for the temperature of erase reversible thermosensitive medium for printing and may be appropriately selected depending on the purpose. The surface temperature of the heated roller is preferably from 100°C to 190°C, more preferably from 110°C to 180°C, even more preferred is sustained fashion from 115°C to 170°C.

Next, description will be made with reference to Fig. 12. A device for processing the image, shown in Fig. 12, includes thermal head 53, serves as the host for the heat treatment, the ceramic heater 38, the magnetic head 34 and the rollers 31, 40 and 47 to move.

As shown in Fig. 12, in the device for processing the first image information stored in the magnetic layer for recording reversible thermosensitive medium for printing is read by the magnetic head. Then, the images printed on the reversible thermosensitive layer to be printed, erased by heating ceramic heater. In addition, processed new information is recorded on the reversible thermosensitive layer for printing using a thermal head on the basis of information read by the magnetic head. Then the information of the magnetic layer for recording is overwritten as new information.

In the device for processing the image, shown in Fig. 12, a reversible thermosensitive medium 1 for printing, in which a magnetic layer for recording is provided on the surface opposite to thermosensitive layer for printing, is moved along the movement path shown opposite arrows, or moves along a movement path in the opposite direction in the device is iste.
A reversible thermosensitive medium 1 for printing is subjected to magnetic recording or erasing magnetic layer between the magnetic recording head 34 and the platen 31 to move and thermoablative between the ceramic heater 38 and roller 40 to move in such a way as to erase the image, and then image is formed between thermal head 53 and the roller 47 to move. After this reversible thermosensitive medium for printing is issued from the device for image processing. Magnetic recording can be overwritten by a ceramic heater before erasing images or thereafter. If necessary, after passing through the ceramic heater 38 and roller 40 to move or pass through thermal head 53 and the platen roller 47 to move reversible thermosensitive medium for printing moves along the movement path in the opposite direction. A reversible thermosensitive medium for printing may be again subjected to heat treatment by means of the ceramic heater 38 and the printing by thermal head 53.

In the device for processing the image, shown in Fig. 13, a reversible thermosensitive medium 1 for printing, introduced through the inlet/outlet 30 extends along the path of travel 50, is provided by a dotted line,
or runs along the movement path 50 in the opposite direction in the device. A reversible thermosensitive medium 1 for printing, introduced through the inlet/outlet 30 is moved in the device for image processing by means of the roller 31 to move and guide roller 32. When the reversible thermosensitive medium for printing has reached a specific position in the path of travel 50, its presence is detected by the sensor 33 by the control unit 34c. After magnetic recording or erasing was performed on the magnetic layer for recording between the magnetic head 34 and the supporting roller 35, a reversible thermosensitive medium for printing passes between the guide roller 36 and the roller 37 to move 37 and passes between the guide roller 39 and the roller 40 to move. Then the reversible thermosensitive medium for printing thermoablative to erase the image between the ceramic heater 38 and the support roller 44, which function through recognition of its presence sensor 43 through node 34c control ceramic heater. After this reversible thermosensitive medium for printing moves along the path of travel 50 of the rollers 45, 46 and 47 to move. After the formation of images between thermal head 53 and the reference roller 52, which function is ionium through recognition of the presence of the medium sensor 51 using node 53c control thermal print head,
where the sensor is located at a given position, a reversible thermosensitive medium for printing is issued from the device in the path of movement 56a through the roller 59 to move and guide roller 60 through the outlet 61.

If necessary, after the introduction of the motion path 56b by switching node 55a to switch the path of movement of the reversible thermosensitive medium 1 for printing thermoablative again between thermal head 53 and the reference roller 52 via a belt 58 to move, moving in the opposite direction by operation of limit switch 57a, powered by pinning reversible thermosensitive medium 1 for printing. Then the reversible thermosensitive medium for printing moves in the forward direction through the motion path 49b, outdoor by switching node 55b to switch the path of travel, limit switch 57b and the tape 48 to move and then is discharged from the device in the path of movement 56a through the roller 59 to move and guide roller 60 through the outlet 61. In addition, extensive travel and host switching movement can also be provided on both ends of the ceramic heater 38. In this case, the sensor 43a is preferably set is between the supporting roller 44 and the roller 45 to move.

Device for image processing and method of image processing according to this invention is applied to the reversible thermosensitive medium for printing according to this invention, which can prevent the accumulation of static charge, the adhesion between the media under the action of oil, water or the like in the application, the formation of scratches after repetitive printing/erasing and twisting, as well as to demonstrate excellent ability to move. Thus, their application is not twisting reversible thermosensitive medium to print even after repetitive printing/erasing, which prevents disorders of movement, such as multi-feed and jam. As a result, the apparatus and method for image processing provide processing with high speed and can form high contrast images.

Examples

The invention will be described below by giving examples, which should not be construed as limiting the invention to these examples.

(Example 1)

A reversible thermosensitive medium for printing according to this invention was produced in accordance with the following procedure.

(1) Basis

As the base used a light opaque polyester film having a thickness of 125 μm (product of Teijin Duont Films Japan Limited,
TETRON FILM U2L98W).

A developer having the following structural formula (3 parts by weight), dialkylamide (a product of Nippon Kasei Chemical Co., Ltd., Hakreen SB) (1 part by weight), 50%by mass solution akrilovye (a product of Mitsubishi Rayon Co., Ltd., LR327) (9 parts by weight) and methyl ethyl ketone (70 parts by weight) were grinded and dispersible in a ball mill so as to have an average particle diameter of about 1 μm.

Then 2-aniline-3-methyl-6-dibutylaminoethanol (1 part by weight) and the isocyanate (a product of Nippon Polyurethane Industry Co., Ltd., CORONATE HL) (3 parts by weight) was added to a prepared as described above, a liquid dispersion containing crushed and dispersed developer, with subsequent thorough stirring, to thereby prepare a liquid coating material for forming heat-sensitive layer.

Then, the thus prepared liquid coating material for forming heat-sensitive layer was applied on the basis of the wrapped wire rod, followed by drying at 100°C for 2 minutes, the Product obtained after drying was utverjdali at 60°C for 24 hours to : open the SQL thermosensitive layer,
having a thickness of about 11 microns.

(3) the Intermediate layer

-Preparation of liquid coating material for forming the intermediate layer

Then, the thus prepared liquid coating material for forming the intermediate layer was applied using a wound wire rod to the Foundation, which was formed thermosensitive layer, followed by drying under heating at 90°C for 1 min and then heated at 60°C for 2 hours to thereby form an intermediate layer having a thickness of about 2 microns.

(4) a Protective layer

-Preparation of liquid coating material for forming a protective layer

Then, the thus prepared liquid coating material for forming a protective layer was applied using a wound wire rod to the Foundation, which was formed thermosensitive layer and the intermediate layer, followed by drying under heating at 90°C for 1 min and then crosslinking using a UV lamp at 80 W/cm, to thereby form a protective layer having a thickness of about 4 microns.

(5) an Antistatic layer

-Preparation of liquid coating material for forming the antistatic layer

Then, the thus prepared liquid material for forming a coating of an antistatic layer was applied using a wound wire rod on the surface of the base opposite to the surface on which have been formed thermosensitive layer, intermediate layer and protective layer, followed by drying under heating at 110°C for 2 min and then crosslinking using a UV lamp at 80 W/cm, 10 m/min and 3 passes in order to form an antistatic layer.

By the above procedure was made reversible thermosensitive medium for printing Example 1.

Manufactured as described above, the reversible thermosensitive medium for printing Example 1 was subjected to measurement to determine the thickness of the antistatic layer as described below.

More specifically, the liquid material for forming a coating of an antistatic layer, excluding a spherical filler having an average particle diameter of 15 μm, was applied using a wound wire rod (diameter: 0.15mm) white opaque polyester film having a thickness of 125 μm (product of Teijin DuPont Films Japan Limited, TETRON FILM U2L98W), followed by drying under heating at 110°C for 2 min and then shivani the m using a UV lamp at 80 W/cm,
10 m/min and 2 passes to thereby form an antistatic layer. Then the thickness of the thus formed antistatic layer was measured using a thickness gauge with a measuring tip for measuring film thickness. In the result, it was found that the antistatic layer has a thickness of 2.6 μm.

In addition, the reversible thermosensitive medium for printing of Example 1 was evaluated against the following properties: thickness of the antistatic layer, the relationship of the average particle diameter of the spherical filler to the thickness of the antistatic layer, the degree of coating the surface of the antistatic layer of the spherical filler and the surface resistance of the antistatic layer. The results are presented in Table 1.

<Method of assessment>

A reversible thermosensitive medium for printing of Example 1 was evaluated as follows.

<<a Score of 1: Surface resistivity>>

Measuring the surface resistance (SIMCO Worksurface Tester ST-3) was placed on the surface of the antistatic layer of the reversible thermosensitive medium for printing. Then measured the resistance under measurement conditions of 25°C and a relative humidity of 60%. The results are presented in Table 1.

<<a Score of 2: the Ability to curl>>

A reversible thermosensitive medium for printing repeatedly subjected to printing and stern the Yu (30 times) in a rewritable printer (product companies SINFONIA TECHNOLOGY CO.,
LTD., RP-K). Thirty minutes this reversible thermosensitive medium for printing was placed on a horizontal table with reversible thermosensitive layer, facing upward to measure the distance between the table and the four corners of the reversible thermosensitive medium for printing. Then it was placed on the table when the antistatic layer, facing upward to measure the distance between the table and the four corners of the reversible thermosensitive medium for printing. The results are presented in Table 1.

A: Twisting<2 mm

B: 2 mm≤Curl<5 mm

C: 5 mm≤Curl<10 mm

D: 10 mm≤ Curl

<<Score 3: the Ability to stick together>>

Distilled water (50 ml) was applied dropwise to the surface of the protective layer of the reversible thermosensitive medium for printing. Apart from this reversible thermosensitive medium for printing, which was perforated to form a through hole, placed it so that the surface of the antistatic layer was brought into contact with distilled water, filed dropwise to the surface of the protective layer. The resulting product of two reversible thermosensitive media print, laminated by distilled water repeatedly processed rubber roller with attached load is as long
while distilled water is not drained out. The hook rod tension transducer inserted into the through hole. In this state, two reversible thermosensitive medium to print stretched in the horizontal direction as long as they are not separated from one another. This measured the maximum force (g), whereby a reversible thermosensitive medium to print separated from one another. The results are presented in Table 1.

A: the Maximum force<1000 g

B: 1000 g≤Maximum force<1500 g

C: 1500 g≤Maximum force<3000 g

D: 3000 g≤Maximum effort

<<a Score of 4: the Formation of scratches>>

A reversible thermosensitive medium for printing repeatedly subjected to printing and erasing (30 times) in a rewritable printer (product companies SINFONIA TECHNOLOGY CO., LTD., RP-K). This reversible thermosensitive medium for printing was evaluated against scratches formed on the surface of the antistatic layer. The results are presented in Table 1.

A: no Scratches were formed.

B: About 1 or 2 lines of scratches were formed.

C: About 3 or 4 lines of scratches were formed.

D: Numerous scratches were formed on the entire surface.

<<Score 5: the Ability to move>>

A reversible thermosensitive medium for printing repeatedly rayed and printing and erasing (30 times) in a rewritable printer (product companies SINFONIA TECHNOLOGY CO.,
LTD., RP-K) to assess its ability to move. The results are presented in Table 1.

A: the Printer is not stopped due to lack of movement (multi-feed, jams).

B: Printer stopped about once due to disorders of movement (multi-feed, jams).

C: Printer stopped about two or three times due to moving violations (multi-feed, jams).

D: the Printer was stopped four times or more due to disorders of movement (multi-feed, jams).

<<a Score of 6: void filler>>

The surface of the antistatic layer of the reversible thermosensitive medium for printing securable nails several times. A piece of transparent adhesive tape was fixed on her, and then was taken away millimetre from her. This piece of tape was fixed on the black paper sheet to assess the degree of exfoliation of the filler. The results are presented in Table 1.

A: not Visually detected the presence of white powder.

B: Visually detected a small amount of white powder.

C: Visually detected a large amount of white powder.

D: White powder can be detected visually at the time when the surface of the antistatic layer has securable nails.

(Examples 2 through 11)

The procedure of Example 1 is overali,
except that the liquid material for forming a coating of an antistatic layer was replaced with a liquid material for forming a coating of an antistatic layer having the compositions shown in Tables 1 and 2, to thereby obtain a reversible thermosensitive medium for printing Examples 2 through 11. Thus obtained reversible thermosensitive medium for printing was evaluated in the same manner as described above. The results are presented in tables 1 and 2.

(Comparative examples 1 to 4)

The procedure of Example 1 was repeated, except that the liquid material for forming a coating of an antistatic layer was replaced with a liquid material for forming a coating of an antistatic layer having the compositions shown in Table 2, to thereby obtain a reversible thermosensitive medium for printing of Comparative examples 1 to 4. Thus obtained reversible thermosensitive medium for printing was evaluated in the same manner as described above. The results are presented in Table 2.

(Comparative example 5)

The procedure of Example 1 was repeated, except that the liquid material for forming a coating of an antistatic layer was replaced with a liquid material of the back layer (liquid material (E), described in Example 13 of JP-A No. 2006-240199 order itself is m to obtain a reversible thermosensitive medium for printing.
Thus obtained reversible thermosensitive medium for printing was evaluated in the same manner as described above. The results are presented in Table 2.

The procedure of Example 1 was repeated, except that the liquid material for forming a coating of an antistatic layer was replaced with a liquid material of the back layer (liquid material (F), described in Example 14 of JP-A No. 2006-240199, to thereby obtain a reversible thermosensitive medium for printing. Thus obtained reversible thermosensitive medium for printing was evaluated in the same manner as described above. It was found that the number of fillers contained in the back layer is about 700/m2. The results are presented in Table 2.

The procedure of Example 1 was repeated, except that the liquid material for forming a coating of the antistatic layer is not applied, so as not to form an antistatic layer, thereby obtaining a reversible thermosensitive medium for printing. Thus obtained reversible thermosensitive medium for printing was evaluated in the same manner as described above. The results are presented in Table 2.

Table 1

Approx. 1

Approx. 2

Approx. 3

Approx. 4

Approx. 5

Approx. 6

Approx. 7

Approx. 8

Approx. 9

Liquid antistatic material layer

Conductive polymer [SEPLEGYDA HC-A04]

100

100

100

100

100

100

100

100

100

Initiator

I-184

0,6

-

-

0,9

-

-

1,2

-

-

I-127

-

0,9

-

-

1,2

-

-

0,9

-

I-907

-

-

1,2

-

-

0,6

-

-

0,6

Spherical filler

MX1000

-

-

-

-

-

0,95

-

0,96

-

MX1500

0,95

0,96

0,97

0,63

1,64

-

-

-

-

MX2000

-

-

-

-

-

-

1,30

-

1,28

MX2500

-

-

-

-

-

-

-

-

-

AVG. particle diameter (ám): d

15

15

15

15

15

10

20

10

20

The thickness of the antistatic layer (μm): t

2,6

3,0

3,6

3,0

3,0

2,0

4,0

1,7

5,0

d/t

5,8

5,0

4,2

5,0

5,0

5,0

5,0

5,9

4,0

The degree of coverage of the spherical filler (%)

4,2

4,2

4,2

2,3

9,5

6,0

4,2

6,0

5,0

Surface resistivity (Ohms/square)

1,3×106

7,9×105

3,2×105

6,3×105

6,3×108

2,0×107

1,3×105

1,0×105

1,0×105

The ability to curl

B

B

B

A

B

B

B

B

B

The ability to stick together

B

A

B

A

A

A

A

B

B

Education scratches

A

A

A

A

A

A

A

B

A

The ability to move

B

A

B

A

A

A

A

B

B

Void filler

A

A

A

A

A

A

B

A

B

In Table 1 "ASCL" means a liquid material for forming a coating of an antistatic layer and "APD" means the average particle diameter. The units of the quantities of electrically conductive polymer, an initiator and a spherical filler are parts by weight.

Table 2

Example 10

Example 11

EUR. example 1

EUR. example 2

EUR. example 3

EUR. example 4

EUR. example 5

EUR. example 6

EUR. example 7

Liquid antistatic material layer

Conductive polymer [SEPLEGYDA HC-A04]

100

100

100

100

100

100

-

-

-

Initiator

I-184

-

-

-

-

-

-

-

-

-

I-127

0,9

0,9

0,9

0,9

0,9

0,9

-

-

-

I-907

-

-

-

-

-

-

-

-

-

Spherical filler

MX1000

-

-

-

-

0,63

1,63

-

-

MX1500

1,63

-

0,96

0,96

-

-

-

-

-

MX2000

-

-

-

-

-

-

-

-

-

MX2500

-

0,96

-

-

-

-

-

-

-

AVG. particle diameter (ám): d

15

25

15

15

10

10

10

10

-

The thickness of the antistatic layer (μm): t

3,0

5,1

4,0

2,4

3,0

3,0

3,0

3,0

-

d/t

5,0

a 4.9

the 3.8

6,3

3,3

3,3

3,3

3,3

-

The degree of coverage of the spherical filler (%)

10,3

2,0

4,2

4,2

1,8

10,3

(4)

(18)

-

Surface resistivity (Ohms/square)

1,3×109

1,3×105

1,3×105

1,3×106

6,3×105

5,3×106

6,3×109

6,3×1013

The ability to curl

B

C

B

B

B

B

D

D

D

The ability to stick together

B

A

C

C

D

D

D

D

D

Education scratches

B

A

C

C

D

D

D

D

D

The ability to move

B

A

D

C

D

B

B

C

Void filler

C

C

B

C

B

B

D

D

-

In Table 2 values in parentheses are expected values, and "EUR. approx." means "Comparative example". Also "ASCL" and "APD" have the same meanings as in Table 1, and unit quantities of electrically conductive polymer, an initiator and a spherical filler are parts by weight.

1. A reversible thermosensitive medium for printing, comprising:basis,the reversible thermosensitive layer for printing, provided on the base, andantistatic layer,this antistatic layer provided at least on the reversible thermosensitive layer for printing or the surface of the substrate opposite the surface on which is provided a reversible thermosensitive layer for printing,the antistatic layer contains a spherical filler and a curable conductive polymer, andspherical fillers satisfy the following expression (1):4 ≤ average particle diameter of the spherical fillers/the thickness of the antistatic layer ≤ 6...(1)

2. A reversible thermosensitive medium for printing according to claim 1, in which the surface of the antistatic layer is covered with spherical fillers, the extent of coverage from 2% to 10%.

3. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the average particle diameter of the spherical filler is from 10 μm to 20 μm.

4. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the thickness of antistatic is anybody layer is from 1 μm to 5 μm.

5. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the antistatic layer has a surface resistance of 1×109Ω/square or less.

6. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the curable conductive polymer is a conductive polymer, cured by UV radiation.

7. A reversible thermosensitive medium for printing according to claim 6, in which an electrically conductive polymer, curable by UV radiation has at least one basic skeleton selected from the group consisting of polythiophene, polyparaphenylene, polyaniline and polypyrrole.

8. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the reversible thermosensitive layer for printing contains electron-donating coloring compound and an electron-acceptor compound.

9. A reversible thermosensitive medium for printing according to claim 1 or 2, in which the reversible thermosensitive medium for printing is formed in the form of a card or sheet.

10. Reversible thermosensitive element for printing, comprising:the section information storage andsection reversible playback picture,in which section of the reversible image playback contains a reversible thermosensitive medium for printing according to any one of claims 1 to 9.

SUBSTANCE: invention relates to method of tools marking. This method comprises provision of tool, its thermal treatment, provision of tool primer ply, printing on tool and application of electrolytic coat thereon. For printing of pattern at primer ply, a layer of dye is used. Layer of dye includes at least one ID element. Said ID element includes at least one ID zone with dye, background section around ID zone with no dye, and boundary line located around background section with dye. Electrolytic coating is applied to section without ID zone and boundary line. Note here that there a sharp contrast between coating and dye ply.

SUBSTANCE: recording medium successively includes a substrate, a first ink-receiving layer and a second ink-receiving layer, wherein content of boric acid in the first ink-receiving layer is 2.0 wt % or more and 7.0 wt % or less with respect to content of polyvinyl alcohol in the first ink-receiving layer, and content of boric acid in the second ink-receiving layer is 10.0 wt % or more and 30.0 wt % or less with respect to content of polyvinyl alcohol in the second ink-receiving layer; the outermost surface layer of the recording medium has particle content of 0.5 wt % or more and 5.0 wt % or less with respect to content of an inorganic pigment, said particles having secondary particle average size of 1.0 mcm or more and 20.0 mcm or less.

SUBSTANCE: method of instrument marking includes formation of an instrument 10, performing a depressed marking 15 in the instrument 10, quenching of the instrument 10, coloration of the instrument 10 in order to create a colour layer 20 on the instrument 10 in the depressed marking 15 and near it, cleaning the instrument 10 from excess of the colorant, overflowing the depressed marking 15, coloration of the instrument 10 into black colour to create a coloured black layer 40 on the instrument 10, except for the depressed marking 15, and painting the instrument 10 to form a transparent layer of paint 50 on the instrument to create luster and prevent rust.

EFFECT: marking is clear, and the applied coating protects the instrument from rust.

SUBSTANCE: present invention relates to a sheet for printing having improved drying time of the image. The sheet for printing comprises a substrate comprising lignocellulosic fibres, and at least 0.02 g/m2 of a water soluble divalent metal salt which is applied by a gluing press. The test value of gluing Hercules ("HST") of the substrate is about from 3 seconds to 300 seconds. The HST value and the amount of divalent metal salt is selected so that the sheet for printing has a percentage of ink transfer ("IT%") equal or less than about 60.

EFFECT: proposed sheet for printing provides improved drying time of the image.

SUBSTANCE: invention relates to recording sheets used in printing processes. The recording sheet comprises a substrate of the web of cellulosic fibres and the sizing composition. The sizing composition comprises a binder and a divalent metal salt. The said salt in a concentration of at least 51% of the total concentration and not less than 2500 parts per million is located at a distance within 25% of the total substrate thickness from at least one surface of the said substrate. At that the recording sheet has Qtotal as a measure of the amount of the sizing agent in the transition from the outer edges towards the middle of the sheet in cross-section of less than 0.5. Also a method of production of the recording sheet is described.

EFFECT: said substrate and the sizing agent interact with formation of the I-shaped structure of the recording sheet which provides an optical density of black printing of at least 1,15.

SUBSTANCE: invention relates to a method of manufacturing a security or valuable document, which includes the following steps: B) multilayer material is produced, which comprises a paper substrate, a masking layer provided on the paper substrate in the masking area, and marking substance modified by laser radiation, provided in the marked area, at that the marked area covers the masking area, and L) the multilayer material in the marked area is subjected to laser action in order to create the negative signs in the masking area simultaneously in register and discolored signs on unmasked areas of the marked area. At that before performing the step L) on the masking layer at least in the marked area the recesses are made in the form of patterns, signs or a code.

EFFECT: invention provides a high degree of protection against forgery.

SUBSTANCE: invention relates to the field of advertising, printing and photography, and is intended to produce high-strength images on metal products, in particular, on the surface of titanium products, and can be used in various fields of industry, arts and crafts. The method includes obtaining an image on the intermediate base, the image transfer on the surface of the product, high temperature burning of the product with the printed image in the oven. As the product for transferring image the titanium sheet is used. Before applying image the titanium sheet is subjected to high temperature burning at a temperature of 890-1020°C to form on its surface of a layer of the titanium oxide uniform in thickness, exposed by this temperature for 15-90 minutes. The burning temperature is selected depending on the desired shade of coloring of the oxide layer, and the exposure time - depending on its desired thickness, the image transfer is carried out on the surface of the obtained titanium oxide layer, and a high temperature burning of the product with the applied image is carried out at a temperature of 550±15°C.

EFFECT: increasing longevity of the images obtained, simplification and reduction of cost of the technologic process of their preparation, as well as the high artistic quality of the image to produce its various shades.

SUBSTANCE: composition comprises a mixture of one of the two porous stable aggregates and precipitated calcium carbonate (PCC) called grade B OCC or grade C OCC, in combination with the second OCC of non-equal-faced type (OCCNT) - the pigment of fine grinding. The ratio of grade B OCC or grade C OCC and OCC of non-equal-faced type OCCNT is selected in the range from 90/10% to 10/90% by dry weight. The content of dry weight of pigments is selected in the range from 0.3% to 5.0% by dry weight of the finished paper product. Depending on the granulometry of two OCC of fine grinding the said mixture may contain a pigment and/or filler of coarser grinding. The main criterion of selection of the pigment of "coarser grinding" is that it should have a granulometry which does not have influence on the significant deviation in the number of particles smaller than 0.2 microns, preferably less than 0.3 microns, more preferably less than 0.5 micron, the most preferably less than 1 micron.

EFFECT: composition enables to eliminate the print-through through the layer of light thin paper such as newsprint and to improve the technical properties of the paper sheet.

SUBSTANCE: invention relates to marking of products and goods in various industries. Proposed method consists in application of hidden thread for marking of the product by applying it on the product or its package. Note here that hidden white and hidden black threads are used to be twisted at a time in various combinations with common threads of cotton, flax, silk, synthetic fibers to be sensed by touch.

SUBSTANCE: proposed invention is designed for protection against counterfeit of packages and other items. Cryptography on the colourless transparent polymer film with the possibility of multiple positive-negative reading of information by means of application of information symbols onto the film with the help of local thermal impact and observation at different angle or in a clear space. Application of information is carried out through usage as a polymer film of unixially oriented rigid elastic polyolefin film, local thermal impact under pressure with subsequent deformation of elastic stretching along the axis of orientation.

EFFECT: proposed invention simplifies production of invisible images on a carrier with provision of high extent of counterfeit protection.

SUBSTANCE: laser deleting device includes a transfer unit for moving a reversible thermal recording medium containing display information with a predefined movement speed, wherein the reversible thermal recording medium reversibly changes its colour hue depending on temperature; and a laser deleting unit configured to delete display information by irradiating the reversible thermal recording medium with a laser beam during movement of the reversible thermal recording medium and by deflecting the laser beam with a predefined scanning speed which is lower than the predefined movement speed in the same direction as the movement of the reversible thermal recording medium.

EFFECT: invention enables recording and deleting on a medium over a short clock time.

SUBSTANCE: according to the proposed invention, printing device applies thermal roller impressing and includes a plate with a transferred pattern, the first feed roller providing continuous feeding of the film, on which a pattern is formed, a heating roller and the first auxiliary roller, which provide impressing of the first pattern into the above film fed from the first feed roller by squeezing of the above film on both of its sides with formation of a plate, on which the pattern is formed, an impressing template on which there is an initial pattern to be impressed into the film and which is installed on the heating roller surface, the first receiving roller providing reception of the plate with the transferred pattern, a rotating ink drum providing the ink application onto the first pattern impressed into the plate with the transferred pattern, a scraper blade providing formation of the second pattern, a blanket cylinder providing formation of the third pattern, and the second auxiliary roller providing formation of the fourth pattern by pressing the printing film and by printing the third pattern formed with the blanker cylinder on the above film.

EFFECT: printing device provides creation of a pattern having the size of up to several hundreds of nanometres.

SUBSTANCE: invention refers to two-sided thermosensitive paper and is designed for two-sided printing. Invention includes image shaping element for two-sided direct thermal printing, which includes substrate and thermosenstivie coating on each side, and which is rolled on each side. At that, it has various final Bekk smoothness index on each side so that final Bekk smoothness index on one side is 300 or more, and final Bekk smoothness index on the other side is within 75-150.

SUBSTANCE: printing device for tachograph of load carrying vehicle has body frame, printing unit, carrier block for the printing carrier. The carrier block has holder which does not move relative the printing unit in the direction of entry into the working position and opposite direction to the output from the working position and can at least partially move from the body frame. The holder, like withdrawable cabinet, has a set of lateral guide members, which are linked another set of guide members in such a way that, the holder can shift in the direction of input and come out of the body frame opposite the input direction. The printing unit in the body frame can move within the limits of a leeway. There is equipment for orientation of the printing unit relative the carrier block, so that the printing unit and the carrier are oriented relative each other, when the carrier block moves in the direction of input. Proposal is also given of a tachograph inbuilt in the printing device.

EFFECT: invention solves problem of compensating looseness and allowance in guide members of packages and guarantees good quality of printing.

SUBSTANCE: printing device for tachograph of load carrying vehicle has body frame, printing unit, carrier block for the printing carrier. The carrier block has holder which does not move relative the printing unit in the direction of entry into the working position and opposite direction to the output from the working position and can at least partially move from the body frame. The holder, like withdrawable cabinet, has a set of lateral guide members, which are linked another set of guide members in such a way that, the holder can shift in the direction of input and come out of the body frame opposite the input direction. The printing unit in the body frame can move within the limits of a leeway. There is equipment for orientation of the printing unit relative the carrier block, so that the printing unit and the carrier are oriented relative each other, when the carrier block moves in the direction of input. Proposal is also given of a tachograph inbuilt in the printing device.

EFFECT: invention solves problem of compensating looseness and allowance in guide members of packages and guarantees good quality of printing.

SUBSTANCE: invention refers to two-sided thermosensitive paper and is designed for two-sided printing. Invention includes image shaping element for two-sided direct thermal printing, which includes substrate and thermosenstivie coating on each side, and which is rolled on each side. At that, it has various final Bekk smoothness index on each side so that final Bekk smoothness index on one side is 300 or more, and final Bekk smoothness index on the other side is within 75-150.

SUBSTANCE: according to the proposed invention, printing device applies thermal roller impressing and includes a plate with a transferred pattern, the first feed roller providing continuous feeding of the film, on which a pattern is formed, a heating roller and the first auxiliary roller, which provide impressing of the first pattern into the above film fed from the first feed roller by squeezing of the above film on both of its sides with formation of a plate, on which the pattern is formed, an impressing template on which there is an initial pattern to be impressed into the film and which is installed on the heating roller surface, the first receiving roller providing reception of the plate with the transferred pattern, a rotating ink drum providing the ink application onto the first pattern impressed into the plate with the transferred pattern, a scraper blade providing formation of the second pattern, a blanket cylinder providing formation of the third pattern, and the second auxiliary roller providing formation of the fourth pattern by pressing the printing film and by printing the third pattern formed with the blanker cylinder on the above film.

EFFECT: printing device provides creation of a pattern having the size of up to several hundreds of nanometres.

SUBSTANCE: laser deleting device includes a transfer unit for moving a reversible thermal recording medium containing display information with a predefined movement speed, wherein the reversible thermal recording medium reversibly changes its colour hue depending on temperature; and a laser deleting unit configured to delete display information by irradiating the reversible thermal recording medium with a laser beam during movement of the reversible thermal recording medium and by deflecting the laser beam with a predefined scanning speed which is lower than the predefined movement speed in the same direction as the movement of the reversible thermal recording medium.

EFFECT: invention enables recording and deleting on a medium over a short clock time.

SUBSTANCE: reversible thermosensitive medium for printing, comprising a base, a reversible thermosensitive layer for printing, provided on the base, and the antistatic layer, at that the antistatic layer is provided on at least a the reversible thermosensitive layer for printing or the substrate surface opposite to its surface on which the reversible thermosensitive layer for printing is provided, the antistatic layer comprises spherical fillers and a curable electroconductive polymer, and the spherical fillers satisfy the following expression (1): 4 ≤ the average diameter of particles of the spherical fillers/thickness of the antistatic layer ≤ 6… (1).

SUBSTANCE: disclosed is a laser graphics control device for drawing an image on an object with laser light, which includes a vertex shifting unit (1102), which obtains graphics data for a one stroke drawing to be drawn on an object with laser light, calculates shift values (E1 and E2) for vertices (P1 and P2) of the one stroke drawing to increase the length of the one stroke drawing based on a predefined scanning rate "x", set for a vertex of the one stroke drawing, and updates the graphics data for shifting coordinates of the vertex of the one stroke drawing based on the calculated shift value; and a drawing command generating unit (1103), which generates a drawing command for outputting commands to an illumination laser device (12) based on graphics data updated by the vertex shifting unit.